Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G3500, VAN PASSENGER EXTENDEDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 13 (ENGINE CONTROL SYSTEM & FUEL SYSTEM - 4.3L - DTC P0340 TO DTC P2138)DTC P0341CONDITIONS FOR SETTING THE DTC
2008 Chevrolet Chevy Express G3500, Van Passenger Extended
Conditions for Setting the DTC
2008 Chevrolet Chevy Express G3500, Van Passenger ExtendedSECTION Conditions for Setting the DTC
WARNING: This page is about a different variant/trim than selected.
IMPORTANT:
Important: The ECM detects engine movement by sensing the airflow through the MAF sensor, when airflow is greater than 3 grams per second, or by sensing crankshaft position (CKP) sensor pulses.
The ECM detects that the engine has started and is running, but receives less than 398, or more than 402 CMP pulses per 100 engine cycles in 800 of 1,000 engine cycles.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.